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Finding the Fourth Proportional to 191,854.84, 287,606.94 and 67,127.80

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Solution

The fourth proportional to 191,854.84, 287,606.94 and 67,127.80 is: 100,630.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,854.84 : 287,606.94 = 67,127.80 : x
  2. Step 2: Convert to fraction form
    191,854.84/287,606.94 = 67,127.80/x
  3. Step 3: Cross multiply
    191,854.84x = 287,606.94 × 67,127.80
  4. Step 4: Simplify right side
    191,854.84x = 19,306,421,146.93
  5. Step 5: Solve for x
    x = 19,306,421,146.93/191,854.84
  6. Step 6: Final answer
    x = 100,630.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.